I’d follow up by saying it keeps in the freezer really well for using for kiddie pizzas and pastas, etc. since it defrosts v quickly and it’s easy to remove frozen. If I’d known that when I was single I would likely have had a packet in my freezer for those times when you fuck up completely and haven’t bought cheese and just made pasta or something.

Cold cheese on toast is actually really nice though. I don’t massively enjoy the smell of cooking cheddar nor when it’s gone hard and crunchy so for me toast + butter/spread + cheese with possibly some pickle or relish on top was always a top snack as a kid.
The last time I had cheese on toast was at a café in Archway and it came with a bechamel cheese sauce on it and was absolutely fucking AMAZING so now I don’t think I could face anything but that.